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On my proxy server I use 2 NICS, 1 is connected to the switch and the other to the ethernet port of my modem router(ZyXel 642R11). I assigned the gateway for the 1st NIC to the IP of the 2nd NIC and the gateway of the 2nd NIC to the IP of the modem-router. You said having two gateways confuses the system. Is this setup flawed. So far I was able to access the internet, though at times I lose connection and I have to manually disable the 1st NIC and then my www connection is alive again. Does installing the RIP Listener service solve this matter or will a static route do?